7440686331928 has 8 divisors (see below), whose sum is σ = 13951286872380. Its totient is φ = 3720343165960.

The previous prime is 7440686331887. The next prime is 7440686331937. The reversal of 7440686331928 is 8291336860447.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465042895738 + ... + 465042895753.

Almost surely, 2^{7440686331928} is an apocalyptic number.

It is an amenable number.

7440686331928 is a deficient number, since it is larger than the sum of its proper divisors (6510600540452).

7440686331928 is a wasteful number, since it uses less digits than its factorization.

7440686331928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930085791497 (or 930085791493 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 61.

The spelling of 7440686331928 in words is "seven trillion, four hundred forty billion, six hundred eighty-six million, three hundred thirty-one thousand, nine hundred twenty-eight".